Body Launderer + Spark Double + Clever Impersonator + Ashnod's Altar

Body Launderer
Spark Double
Clever Impersonator
Ashnod's Altar

Requires
Body Launderer must be on the battlefield. Spark Double must be in the graveyard. Clever Impersonator must be on the battlefield (as a copy of Body Launderer). Ashnod's Altar must be on the battlefield.
Steps
  1. Activate Ashnod's Altar by sacrificing Clever Impersonator, adding .
  2. Clever Impersonator dies, triggering its second ability and Body Launderer's first ability.
  3. Resolve the Clever Impersonator trigger, returning Spark Double from your graveyard to the battlefield as a copy of Body Launderer.
  4. Resolve the Body Launderer trigger, causing it to connive.
  5. Activate Ashnod's Altar by sacrificing Spark Double, adding .
  6. Spark Double dies, triggering its second ability and Body Launderer's first ability.
  7. Resolve the Spark Double trigger, returning Clever Impersonator from your graveyard to the battlefield as a copy of Body Launderer.
  8. Resolve the Body Launderer trigger, causing it to connive.
  9. Repeat.
Results
Infinite card draw. Infinite draw triggers. Near-infinite +1/+1 counters on Body Launderer. Near-infinite colorless mana. Near-infinite death triggers. Near-infinite ETB. Near-infinite LTB. Near-infinite sacrifice triggers.

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32% of 60 decks +4% synergy
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Meticulous Archive
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Tundra
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Underground Sea
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15% of 65 decks +6% synergy
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Underground River
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13% of 60 decks -3% synergy
Reflecting Pool
12% of 65 decks +7% synergy
Dimir Aqueduct
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Hengegate Pathway
12% of 60 decks +4% synergy
Brightclimb Pathway
12% of 60 decks +1% synergy
Terramorphic Expanse
11% of 65 decks -5% synergy
Path of Ancestry
11% of 65 decks -10% synergy
Adarkar Wastes
10% of 60 decks -7% synergy
Temple of Silence
10% of 60 decks -8% synergy
Temple of Deceit
9% of 65 decks -7% synergy
Mana Confluence
8% of 65 decks +0% synergy
City of Brass
8% of 65 decks -0% synergy
Tainted Field
7% of 60 decks -7% synergy
Darkwater Catacombs
6% of 65 decks -9% synergy
Choked Estuary
6% of 65 decks -10% synergy